/* ==========================================================================
   BUSCAR
   ========================================================================== */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-5);
  min-height: 72px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-2);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  transition: border-color var(--dur-2), box-shadow var(--dur-2);
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 5px color-mix(in oklab, var(--accent) 12%, transparent), var(--shadow-2); }
.search-box > .icon { width: 24px; height: 24px; color: var(--accent); }
.search-box input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.1rem + 1vw, 1.9rem);
  letter-spacing: -.01em;
}
.search-box input::placeholder { color: var(--ink-4); }

.search-filters { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3) var(--space-5); margin: var(--space-4) 0 var(--space-6); }

.search-ref {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--ink);
  color: var(--bg);
}
.search-ref b { font-family: var(--font-display); font-size: 1.6rem; font-weight: 500; }
.search-ref p { font-family: var(--font-reading); color: color-mix(in oklab, var(--bg) 75%, transparent); margin-top: 4px; }
.search-ref .btn { --btn-bg: var(--bg); --btn-ink: var(--ink); --btn-line: transparent; }

.search-summary { margin-bottom: var(--space-5); }
.ss-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-3); }
.ss-count { font-family: var(--font-display); font-size: var(--fs-xl); font-weight: 500; }
.ss-count small { font-family: var(--font-ui); font-size: var(--fs-sm); color: var(--ink-3); font-weight: 500; margin-left: .4em; }

/* Distribución de resultados por libro */
.dist {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 72px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-2);
}
.dist button {
  position: relative;
  flex: 1;
  height: 100%;
  display: flex;
  align-items: flex-end;
  border-radius: 2px 2px 0 0;
  cursor: pointer;
}
.dist button i {
  display: block;
  width: 100%;
  height: var(--h);
  min-height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--accent);
  opacity: .8;
  transform-origin: bottom;
  animation: grow var(--dur-3) var(--ease-out) both;
  animation-delay: calc(var(--i) * 6ms);
  transition: opacity var(--dur-1);
}
.dist button.zero i { background: var(--line-2); min-height: 1px; opacity: 1; }
.dist button:hover i, .dist button.is-active i { opacity: 1; background: var(--ink); }
.dist-legend { position: relative; display: flex; justify-content: space-between; font-size: .7rem; color: var(--ink-3); margin-top: 6px; }
.dist-legend span[style] { position: absolute; top: 0; padding-left: 6px; border-left: 1px solid var(--line-2); }
.dist button:nth-child(40) { margin-left: 3px; }
.dist-tip { font-size: var(--fs-sm); color: var(--ink-2); min-height: 1.5em; margin-top: var(--space-2); }

.result {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-2);
  border-bottom: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: background-color var(--dur-1);
}
.result:hover { background: var(--surface); }
.result-ref { font-size: var(--fs-sm); font-weight: 700; color: var(--accent); padding-top: .25em; }
.result-text { font-family: var(--font-reading); font-size: 1.08rem; line-height: 1.6; }
.result-text mark {
  background: linear-gradient(transparent 55%, color-mix(in oklab, var(--accent) 26%, transparent) 55%);
  color: inherit;
  padding: 0 .05em;
}
.result-note { grid-column: 2; font-size: var(--fs-sm); color: var(--ink-2); padding-left: var(--space-3); border-left: 2px solid var(--accent-line); }
.result-note mark { background: color-mix(in oklab, var(--accent) 20%, transparent); color: inherit; }
.more-results { display: flex; justify-content: center; padding: var(--space-5); }
.search-loading { display: flex; align-items: center; gap: var(--space-3); color: var(--ink-3); padding: var(--space-5) 0; }
.search-loading .progress { flex: 1; max-width: 260px; }

@media (max-width: 760px) {
  .search-box { min-height: 60px; padding: 0 var(--space-4); }
  .search-filters { gap: var(--space-3); }
  .search-filters .seg { width: 100%; }
  .search-filters .seg button { flex: 1; padding: 0 .5em; }
  .result { grid-template-columns: 1fr; gap: 4px; }
  .result-note { grid-column: 1; }
  .search-ref { flex-direction: column; align-items: flex-start; }
}